Forming-machine.



No. 719,304. PATENTED' JAN. 27, 1903.

B. W. GOGHLIN.

FORMING MACHINE.

APPLICATION FILED MAY 19, 1902. N0 MODEL.

3 SBEET8-BHBETL 7 va a m: non ms PETERS c'Q. Puma-Lama wasnmomu. nv c.

No. 719,304. PATBNTED JAN. 27,1903.

B. W. GOGHLIN. I FORMING MACHINE.

APPLIOATION FILED MAY 19, 1902.

N0 MODEL. 3 SHEETS-SHEET 2.

O O A 0 A0 0 f O E I O O C L O O d o o v C L O O m r I" n17 I \ll 7 y7// l 8 /7 g Q Slum/MM PATENTED JAN. 27, 1903.

B. W. GOGHLIN. FORMING MACHINE. APPLICATION FILED MAY: 19, 1902.

3 SHEETS-SHEET 3.

NOMODEL.

BERNARD WILLIAM COGHLIN, OF MONTREAL, CANADA.

FORMING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 719,304, dated January27, 1903. Application filed May 19, 1902. Serial No. 107.977. (Nomodel.) v

To (oZZ whom it may concern: V

Be it known that I, BERNARD WILLIAM COGHLIN, of the city of Montreal,district of Montreal, and Province of Quebec, Canada, have inventedcertain new and useful Improvements in Forming-Machines; and I do herebydeclare that the following is a full, clear, and exact description ofthe same.

My invention may be said briefly to consist in providing a machinecomprising a pair of bearers exerting pressure one toward the other andbetween which there pass simultaneously and in coincident relation aform or pattern and the blank to be formed.

For full comprehension, however, of my invention reference must be hadto the accompanying drawings, forming a part of this specification, inwhich like reference characters indicate the same parts, and wherein--Figure 1 is a front elevation of my invention adapted for formingspring-leaves, and Fig. 2 is a top plan view thereof. Fig. 3 is a detailend view in perspective of one of the spring-leaves without an eye atits end and illustrating the clip adapted for connecting same. Fig. t isa side elevation of the machine, and Fig. 5 a modification illustratingthe friction-roll and form with two engaging faces.

The frame I) of my invention comprises a pair of pillow-blocks c forsupporting a shaft (1, upon one end of which is mounted a feedroll 6 andupon the other end a bevel-gear f. Beneath the roll the machine-frame isformed with vertically-elongated bearings g g, and a U -frame It, withoffset ends 2', having their upper surfaces concaved,is located with itsoffset ends in said bearings gg, while alifting-jack 7s, located beneathsaid U-frame, bears upon and is adapted to raise and lower same. Atrunnion Z, carrying an idle roll m, is mounted with its ends projectinginto said bearings g g and resting upon the ends 2' of the U- frame.

A drive-shaft n, having a bevel-gear 0 intermeshing with the bevel-gearf, is mounted in bearings 19 upon the frame of the machine and carries apair of loose pulleys q and r, oppositely driven by a straight belt 8and a crossed belt 15, a clutch it, operated by a lever 0, serving toeffect a rotative connection between either of said pulleys and theshaft.

The form or pattern in this instance consists of a rigid metallicsection 2 in the form of a bow,havinga perforation at its middle and setin its given form by a brace or stay 4 in the form of a rigid bar, whichis connected to the ends of the how by fastening devices 5. In order toenable the arc of the bow to be Varied, I adapt these fastening devicesto be adjusted longitudinally of the brace or stay. To this end Iformthe bar with a series of transverse perforations 6 and mount a pair ofsleeves 7 upon the bar, one at each end, and adapt same to be adjustablelongitudinally thereof, said sleeves being set in any position to whichthey may be moved by pins 8, passing through transverse perforations 6in the bar. Each of these sleeves is formed with a fork 9, the prongs ofwhich have perforations in their ends. The eyes 10 at the ends of thehow are placed between the said perforated portion of the prongs andheld in place by pins 11. These fastening devices may be supplementedwith clips consisting of a rigid bent bar 20, adapted to receive theends of the leaves which are not formed with eyes, the ends of the bentbar being closer together to presentarecess somewhat of dovetailed form,as at 21.

The perimeter of the feed-roll can, if desired, be formed with frictionor gear teeth 30 and the inside surface of the form roughened or formedwith gear-teeth 31 to obviate any chance of slipping.

The operation of forming a spring-leaf is as follows: The heated blank40, which is to be bent and which has a perforation midway of its lengthcorresponding to the perforation in its form, is connected, preferably,by a removable key in the form of a pin 12. The form and hot blank arefirst set in their proper position relatively to one another and keyed.They are then gripped slightly to one side of the center by a pair oftongs 25, and the form and blank are then placed between the rolls andthe idle roll raised by the screw-jack until it causes both form andblank to be held under comparatively strong pressure. The clutch-glandis then shifted into engagement with the pulley g, which will cause thefeed-roll to rotate in the direction indicated by a feathered arrow,thus rolling the form and blank through together to the position shownin dotted lines to the left of Fig. 1, and their ends are then securedtogether preferably by tongs. (Indicated at 15.) The clutch-gland isshifted into engagement with pulley 1', thus causing the feed-roll torotate in the direction indicated by the unfeathered arrow, and as themiddle portion of the form and blank arrive at the rolls the tongs 25are disengaged to allow the blank and form to pass and roll the form andblank to the position shown in dotted lines to the right of Fig. 1. Whenthus brought together, the opposite ends of the blank and form are alsosecured together by the tongs 25, as indicated in said last-mentionedposition. The form, together with the bent leaf, are then removed fromthe rolls and the leaf tempered while still upon the form. The leaf willthen be ready for assembling.

To insure perfect fitting of the leaves in the assembled spring, Iprefer to first form the largest leaf, which usually has eyes at itsends, similar to those at the ends of the form hereinbefore described. Ithen detach the stirrups from the form and attach them to the completedleaf and use the latter as a form upon which I roll the leaf to lie nextthereto in the spring, and so on, substituting the leaf last formed forthat which has just constituted the form until all the leaves arecompleted; but as the leaves other than the largest are not made witheyes at their ends I supplement the stirrups with the clips 20 (see Fig.3) and force the ends of the smaller and intermediate spring leavesthereinto, the pin for connecting the stirrups being first passedthrough the eye in the clips formed by the bend therein.

Forms and rolls of other contour than illustrated can be used and otherblanks manipulated without departing from the spirit of my invention.

What I claim is as follows:

1. A forming-machine comprising bearing members exerting a pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, and means for causing said form or pattern and the blankthereon to pass between and receive pressure from said bearingmembers,for the purpose of forming said blank in conformity to said formor pattern.

2. A forming-machine comprising pair of rolls exerting a pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, and means for causing said form or pattern and the blankthereon to pass between and receive pressure from said pair of rolls,for the purpose of forming said blank in conformity to said form orpattern.

3. A forming-machine comprising bearing members exerting a pressure onetoward the other, a form or pattern in the form of a bow, means forsecuring the blank to be formed against longitudinal displacementrelatively to said form or pattern, and means for causing said form orpattern and the blank thereon to pass between and receive pressure fromsaid bearing members for the purpose set forth.

4. A forming-machine comprising bearing members exerting a pressure onetoward the other, a movable form or pattern in the form of a bow, meansfor securing the blank to be formed against longitudinal displacementrelatively to said form or pattern, and means for moving said form orpattern and the blank thereon and causing same to pass between andreceive pressure from said bearing members, for the purpose set forth.

5. A forming-machine comprising a pair of rolls exerting a pressure onetoward the other, a movable form or pattern in the form of a bow, meansfor securing the blank to be formed against longitudinal displacementrelatively to said form or pattern, and means for moving said form orpattern and the blank thereon and causing the same to pass between andreceive pressure from said rolls, for the purpose set forth.

6. Aforming-machine comprisingastationary roll and a movable roll,.meansfor moving said movable roll toward and from said stationary roll, aform or pattern for receiving thereon the blank to be formed, and meansfor causing said form or pattern and.

the blank thereon to pass between and receive 1 ary roll anda movableroll, means for moving said movable roll toward and from said stationaryroll, a movable form or pattern in the form of a bow, means for securinga blank to be formed againstlongitudinal displacement relatively to saidform or pattern, and means for moving said form or pattern and the blankthereon and causing same to pass between and receive pressure from saidrolls, for the purpose set forth.

8. A forming-machine comprising bearing members exerting a pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, said form or pattern consisting of a curved part of theconfiguration'to be imparted, and a rigid part bracing or staying saidcurved part in its given form, and means for causing said curved partand the blank thereon to pass between and receive pressure from saidbearing members, for the purpose set forth.

9. A forming-machine comprising a pair of rolls exerting a pressure onetoward the other a form or pattern for receiving thereon the blanks tobe formed, said form or pattern consisting of a curved part of theconfiguration to be imparted, a rigid part for bracing or staying saidcurved part in its curved form, means for connecting the ends of saidcurved part to said brace or stay, and means for causing said curvedpart and the blank thereon to pass between and receive pressure fromsaid roll, substantially as described and for the purpose set forth.

10. A forming-machine comprising a stationary roll and a movable roll,means for moving said movable roll toward and from said stationary roll,a movable form or pattern between said rolls, means for causing saidform or pattern to move alternately in opposite directions, for thepurpose set forth.

1].. A forming-machine comprising a stationaryfriction-roll and amovable roll, means for moving said movable roll toward and from saidstationary roll, a form or pattern for receiving thereon the blank to beformed, one side of said form or pattern having a frictionsurface andmeans for rotating said stationary roll, substantially as described andfor the purpose set forth.

12. A forming-machine comprising a stationary roll, a shaft having saidstationary roll mounted rigidly upon one end thereof, a bevel-gearmounted upon the opposite end of said shaft, a driving-shaft at rightangles to said first-mentioned shaft a bevel-gear upon one end ofsaiddriving-shaftandintermeshing with said first-mentioned bevel-gear, apair of oppositely-driven pulleys upon said drivingshaft and loosethereupon, a clutch for rotatively connecting either of said pulleys tothe drive-shaft, an idle roll, a bearing supporting said idle roll,means for adjusting said bearing and with it said idle roll toward andfrom said first-mentioned roll, a movable form or pattern in the form ofa bow, means for securing a blank to be formed against longitudinaldisplacement relatively to said form or pattern said blank being locatedadjacent to said form or pattern, and means for moving said form orpattern and the blank therewith and causing same to pass between andreceive pressure from said rolls, substantially as described and for thepurpose set forth.

13. A forming-machine comprising a stationary friction-roll, a shafthaving said stationary roll mounted rigidly upon one end thereof, abevel-gear mounted upon the opposite end of said shaft, a driving-shaftat right angles to said first-mentioned shaft, a bevel-gear upon one endof said driving-shaft and intermeshing with said first-mentionedbevel-gear, a pair of oppositely-driven pulleys upon said driving-shaftand loose thereupon, aclutch for rotatively connecting either of saidpulleys to the drive-shaft, an idle roll, a bearing supporting said idleroll, means for adjusting said bearing, and with it said idle roll,toward and from said first-mentioned roll, a form or pattern forreceiving thereon the blank to be formed, said form or patternconsisting of a curved part having its exterior of the configuration tobe imparted and its interior formed with a friction-surface, and a rigidpart bracing or staying said curved part in its given form, said curvedpart and the blank thereon passing between and receiving pressure fromsaid rolls, substantially as described and for the purpose set forth.

14. Aforming-machinecomprisingbearing members exerting pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, means for varying the configuration of said form or patternand means for causing said form or pattern and the blank thereon to passbetween and receive pressure from said bearing members, for the purposeof forming said blank in conformity to said form or pattern.

15. A forming-machine comprising bearing members exerting a pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, said form or pattern consisting of a'curved part of theconfiguration to be imparted, and a rigid part bracing or staying thesaid curved part in its given form, means for varying the arc of saidcurved part, and means for causing said curved part and the blankthereon to pass between and receive pressure from said bearing members,for the purpose set forth.

16. A forming-machine comprising bearing members exerting a pressure onetoward the other, a form or pattern for receiving thereon the blank tobe formed, said bearing members and said form or pattern with the blankthereon being moved one relatively to the other,

with the form-roll blank between and receiving pressure from saidbearing members, for the purpose of forming said blank in conformity tosaid form or pattern.

17. Aforming-machinecomprising bearing members exerting a pressure onetoward the other, a form or pattern in the form of a bow, means forsecuring the blank to be formed against longitudinal and lateraldisplacement relatively to said form or pattern, and means for causingsaid form or pattern and the blank thereon to pass between and receivepressure from said bearing members for the purpose set forth.

In testimony whereof I have affixed my sig nature in presence of twowitnesses.

BERNARD WILLIAM COGHLIN.

Vitnesses:

WILLIAM P. MCFEAT, FRED. J. SEARS.

